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高压开关柜是电力工程中常见的电气设备,在长期运行过程中,触头、电缆接头等接点位置发热现象时有发生,及时、准确地对其进行监测显得十分重要。文章分析了高压开关柜产生温度过高的原因,从系统组成、原理及系统特点方面介绍了红外在线测温系统、光纤在线测温系统、无线式在线测温系统,并对各系统进行比较,阐明了各系统的特点。
High voltage switchgear is a common electrical equipment in power engineering. During long-term operation, it is very important to monitor the temperature of contact points such as contacts and cable joints occasionally and timely and accurately. This paper analyzes the reason of high temperature in high voltage switchgear, introduces the infrared online temperature measurement system, the optical fiber online temperature measurement system and the wireless online temperature measurement system from the aspects of system composition, principle and system characteristics, and compares the systems. Clarified the characteristics of each system.